Indiana vehicle lighting laws

Below are all relevant excerpts from Indiana Vehicle Code which limit, restrict or allow certain aftermarket lights to be installed on vehicles.

IC 9-19-6-8 Clearance and marker lamps and reflectors; color displayed or reflected

Sec. 8. (a) A front clearance lamp, marker lamp, and reflector mounted on the front or on the side near the front of a vehicle must display or reflect an amber color.

(b) A rear clearance lamp, marker lamp, and reflector mounted on the rear or on the sides near the rear of a vehicle must display or reflect a red color.

(c) A lighting device and reflector mounted on the rear of a vehicle must display or reflect a red color, except as follows:

(1) The stoplight or other signal device may be red, amber, or yellow.

(2) The light illuminating the license plate must be white.

(3) The light emitted by a back-up lamp must be white or amber

IC 9-19-6-18 Fender lamps; running-board courtesy lamps; back-up lamps

Sec. 18. (a) A motor vehicle may be equipped with not more than two (2) side cowl or fender lamps that emit an amber or a white light without glare.

(b) A motor vehicle may be equipped with not more than one (1)running-board courtesy lamp on each side that emits a white or an amber light without glare.

(c) A motor vehicle may be equipped with not more than two (2)back-up lamps either separately or in combination with other lamps.

IC 9-19-6-19 Flashing warning lights

Sec. 19. (a) A vehicle may be equipped with lamps that may be used for the purpose of warning the operators of other vehicles of the presence of a vehicular traffic hazard requiring the exercise of unusual care in approaching, overtaking, or passing. The vehicles,when so equipped, may display the warning in addition to any other warning signals required by this article.

(b) A lamp used to display a warning to the front must be mounted at the same level and as widely spaced laterally as practicable, and must display simultaneously flashing white or amber lights or any shade of color between white and amber.

(c) A lamp used to display a warning to the rear must be mounted at the same level and as widely spaced laterally as practicable, and must show simultaneously flashing amber or red lights or any shade of color between red and amber.

IC 9-19-14.5-1 Display of green lights on privately owned vehicles in line of duty

Sec. 1. A privately owned vehicle belonging to a licensed paramedic, certified advanced emergency medical technician, certified emergency medical technician, certified emergency medical service driver, or certified emergency medical responder while traveling in the line of duty in connection with emergency medical services activities may display flashing or revolving green lights, subject to the following restrictions and conditions […]

(5) The green lights may not be a part of the regular head lamps displayed on the vehicle.

(6) For a person to be authorized under this chapter to display a flashing or revolving green light on the person’s vehicle, the person must first secure a written permit from the executive director of the department of homeland security to use the light. The permit must be carried by the person when the light is displayed.

Displaying flashing or revolving green or white lights is considered a Class C infraction (as per: 9-19-14.5-2).

IC 9-19-14-5 Police vehicles used as emergency vehicles

Sec. 5. A police vehicle, when used as an authorized emergency vehicle, must be equipped with either of the following:

(1) At least two (2) signal lamps capable of displaying a red beam and a blue beam that meet the following requirements:
(A) The signal lamps are mounted as high and as widely spaced laterally as practicable or mounted in a manner that will make the lights visible to oncoming traffic one hundred
eighty (180) degrees around the front of the vehicle. (B) The signal lamps are capable of displaying to the front alternately flashing red and blue lights.

IC 9-19-14-5.5 Red and white, red and blue, red, or amber lights; violation

Sec. 5.5. (a) Except for a:
(1) vehicle utilized in a funeral procession; or
(2) funeral escort vehicle bearing markings as described in IC 9-21-13-0.7;
a vehicle that is not described by sections 2 or 5 of this chapter may not display a red and white lamp or a red and blue lamp.
(b) A person who: (1) possesses a vehicle with equipment described by sections 2 or 5 of this chapter; and (2) is not authorized to display a red and white or red and blue lamp upon the vehicle; shall immediately remove the red and white or red and blue lamp from the vehicle. (c) A funeral escort vehicle, other than an authorized emergency vehicle used in a funeral procession or as a funeral escort vehicle, may display only red and white, red, or amber lights.
(d) Except as provided in subsection (e), a person who fails to comply with subsection (b) or (c) commits a Class C misdemeanor

Emergency vehicle colors in Indiana include red, blue and green, so using any combination of these colors (even if not flashing) is not recommended.